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2.5% Lidocaine/2.5% Prilocaine Cream for IUD Insertion and Endometrial Biopsy

11 sierpnia 2026 zaktualizowane przez: Mara Sobel, Mount Sinai Hospital, Canada

A Double-blind Placebo-controlled Randomized Controlled Trial (RCT) of Self-application of Lidocaine 2.5%/Prilocaine 2.5% Cream for Intrauterine Device (IUD) Insertion and Endometrial Biopsy

The aim of this study is to determine if 5g of self-administered topical 2.5% lidocaine/2.5% prilocaine cream, reduces pain during IUD insertion and/or endometrial biopsy. The proposed study is a double-blind, placebo-controlled RCT. Each participant will be randomly assigned to one of two arms: 1) Intervention (5g of 2.5% lidocaine/2.5% prilocaine cream in a pre-filled vaginal applicator). 2) Placebo (5g of VersaPro cream in a pre-filled vaginal applicator). Participants will be asked to self-administer the pre-filled vaginal applicator at least 10-15 minutes prior to the procedure. The patient will be asked to rate their pain throughout various steps of the procedure and complete a post-procedure survey afterwards. The primary outcome is global pain score, which will be patient-reported by the 100 mm Visual Analogue Scale (VAS) 5-minutes following the procedure (endometrial biopsy or IUD insertion).

Przegląd badań

Status

Jeszcze nie rekrutacja

Warunki

Interwencja / Leczenie

Szczegółowy opis

The proposed study is a double-blind, placebo-controlled randomized controlled trial (RCT). Participants will be recruited from Mount Sinai Hospital outpatient gynecology clinics. Recruitment, consent, randomization, procedure and post-procedure survey will occur during the same visit.

Two separate randomization schedules will be generated, one for IUD insertion and one for endometrial biopsy, using computer-generated sequences prepared by an independent study coordinator. Randomization will occur via consecutively numbered, opaque, sealed envelopes containing the allocation code. Each participant will be randomly assigned to one of two arms: 1) Intervention (5g of 2.5% lidocaine/2.5% prilocaine cream in a pre-filled vaginal applicator). 2) Placebo (5g of VersaPro cream in a pre-filled vaginal applicator). The research coordinator (who is not involved in direct patient care) will open the allocation envelopes without the presence of the participant or the provider. They will prepare the self-applicators with either 5g of 2.5% lidocaine/2.5% prilocaine cream or 5g of placebo cream to maintain blinding. The patient will be instructed how to self-administer the applicator and dispense all 5g of cream into their vagina in the washroom. A patient education sheet highlighting instructions will also be provided. The patient will wait 10-15 mins and then will be brought into a room for the procedure. Once the procedure begins, pain scores at key intervals will be patient-reported by a 10-point numeric rating scale (NRS) and recorded by a research assistant. A global pain score using a 100mm visual analogue scale (VAS) at 5-minutes following the procedure will also be collected. Post-procedure, there will be a provider-completed questionnaire and a patient satisfaction questionnaire. The provider questionnaire will help describe details of the procedure and complications. The patient satisfaction questionnaire will describe feasibility, acceptability and satisfaction with self-administered cream. The primary outcome will be global pain score at 5-minutes post-procedure, which will be patient-reported by the 100 mm VAS. Secondary outcomes include: pain at specific pain points using a 10-point NRA (baseline after insertion of cream, after insertion of speculum, tenaculum placement, sounding of uterus (IUD only), IUD insertion or endometrial biopsy, and 1-minute post-procedure). Other secondary outcomes include pre- and post-procedure anxiety, procedural characteristics (uterine size, position, IUD type, number of biopsy passes), immediate complication and side effects, procedural difficulty, length of time to complete the procedure, and patient reported feasibility, acceptability, perceived control over pain and satisfaction.

Typ studiów

Interwencyjne

Zapisy (Szacowany)

174

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Lokalizacje studiów

    • Ontario
      • Toronto, Ontario, Kanada, M5G1Z5
        • Ontario Power Generation Building
        • Kontakt:
        • Główny śledczy:
          • Mara Sobel, MD
        • Pod-śledczy:
          • Praniya Elangainesan, MD

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

  • Dorosły
  • Starszy dorosły

Akceptuje zdrowych ochotników

Tak

Opis

Inclusion Criteria:

  • Any participant ≥18 years presenting for an IUD insertion or endometrial biopsy
  • English speaking participants only

Exclusion Criteria:

  • Use of pain medication that is not an NSAID or acetaminophen (e.g. opioids, benzodiazepines) within past 24 hours
  • Misoprostol administration within 24 hours
  • Confirmed pregnancy
  • Any diagnosed chronic pain syndromes (e.g. fibromyalgia, vaginismus)
  • Allergy to lidocaine, prilocaine or any other "-caine" type anesthetics or any of the non-medicinal ingredients found in the product
  • Patients with congenital or idiopathic methemoglobinemia
  • Patients with glucose-6-phosphate dehydrogenase deficiency
  • Severe kidney or liver disease
  • Previous history of local anesthetic systemic toxicity (LAST)
  • Baseline vital signs of systolic blood pressure <100, diastolic blood pressure <60 and/or pulse <60.
  • Previous unsuccessful office attempt of IUD insertion or endometrial biopsy by the same practitioner (note of clarification: previous unsuccessful IUD insertion or biopsy attempt by a different practitioner will still be eligible)
  • Active atopic dermatitis or skin involving vulva, vagina and/or cervix.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Inny
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Podwójnie

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: Medicated cream
5g of 2.5% lidocaine/2.5% prilocaine topical cream administered with vaginal self-applicator
5g of 2.5% lidocaine/2.5% prilocaine topical cream administered by participant by vaginal self-applicator
Komparator placebo: Placebo cream
5g of placebo VersaPro topical cream administered with vaginal self-applicator
5g of VersaPro cream administered by participant by vaginal self-applicator

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Global pain score
Ramy czasowe: Completed by patient 5-minutes post procedure.
Patient-reported pain measured using the 100-mm Visual Analogue Scale (VAS) 5 minutes following the procedure (endometrial biopsy or IUD insertion). The VAS ranges from 0 mm (no pain) to 100 mm (worst pain imaginable), with higher scores indicating greater pain (a worse outcome).
Completed by patient 5-minutes post procedure.

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Pain scores at specific pain points during procedure
Ramy czasowe: During the procedure
Pain scores at specific pain points: baseline after insertion of cream, after insertion of the speculum, removal of excess cream with gauze, placement of tenaculum, sounding (IUD only), IUD insertion/endometrial biopsy, and 1-minute post-procedure, which will be patient-reported verbally during the procedure on a scale from 0 (i.e. no pain) to 10 (worst pain imaginable). When more than one biopsy pass is required, only pain after the first pass will be recorded.
During the procedure
Anxiety levels
Ramy czasowe: After application of the cream and waiting for 10 minutes but before starting the procedure as well as at 1-minute after the procedure.
Patient-reported anxiety before and after the procedure, measured using a 5-point Likert scale ranging from 1 (very anxious) to 5 (very calm). Higher scores indicate less anxiety (a better outcome).
After application of the cream and waiting for 10 minutes but before starting the procedure as well as at 1-minute after the procedure.
Immediate complications of endometrial biopsy and/or IUD insertion
Ramy czasowe: Completed by the provider immediately after the procedure (within 30 mins post procedure).
Provider-reported immediate complications associated with the endometrial biopsy and/or IUD insertion, including difficulty of procedure, vasovagal reaction, vital sign changes, or other procedure-related complications. This will be assessed by the presence or absence of specific procedure-related complications.
Completed by the provider immediately after the procedure (within 30 mins post procedure).
Difficulty of procedure
Ramy czasowe: Completed by the provider immediately after the procedure (within 30 mins post procedure).
The difficulty of the procedure will be assessed with a Likert scale from 1 (least difficult) to 5 (most difficulty), provider reported.
Completed by the provider immediately after the procedure (within 30 mins post procedure).
Length of time for procedure completion
Ramy czasowe: During the procedure
Time will be recorded via stopwatch
During the procedure
Patient-reported acceptability, feasibility, and satisfaction with vaginal cream self-administration
Ramy czasowe: Completed by the patient immediately after the procedure (within 30 mins post procedure).

Patient-reported acceptability and satisfaction with self-administration will be assessed using a study-specific questionnaire evaluating ease and comfort of self-administration, perceived control, satisfaction with pain control and the self-application process, and willingness to use self-administration for a future gynecologic procedure.

Ease of administration, comfort with self-administration, satisfaction with pain control, satisfaction with the self-application process, and likelihood of choosing self-administration again will each be assessed using 5-point Likert scales ranging from 1 to 5, with higher scores indicating greater ease, comfort, satisfaction, or likelihood of future use (a better outcome). Additional acceptability measures, including confidence in correct application, difficulty with application, perceived control, and willingness to choose the same pain-control method in the future, will be reported descriptively based on categorical responses (Yes/No/Unsure)

Completed by the patient immediately after the procedure (within 30 mins post procedure).

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

30 lipca 2026

Zakończenie podstawowe (Szacowany)

30 czerwca 2027

Ukończenie studiów (Szacowany)

31 grudnia 2027

Daty rejestracji na studia

Pierwszy przesłany

5 sierpnia 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

11 sierpnia 2026

Pierwszy wysłany (Rzeczywisty)

17 sierpnia 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

17 sierpnia 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

11 sierpnia 2026

Ostatnia weryfikacja

1 sierpnia 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • REB # 1630

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

produkt wyprodukowany i wyeksportowany z USA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .